Toshiba's come with an image based recovery DVD - it simply reimages your hard drive when you boot from it. It's handly and quick, but the options that a normal recovery CD has are absent.
It seems that this most likely occurred because you rebooted your computer. I'd guess that, if you don't reboot then your CD/DVD would continue to be recognized. If these assumptions are correct, then I'd suspect that something was loading when you reboot and is rewriting the upper and lower filter values.
As such, I'd suggest you use this free program ( http://www.microsoft.com/technet/sysintern...s/Autoruns.mspx
) to see what's loading at startup that may be affecting your CD/DVD burner. Disable (don't delete) the suspected items, reboot, delete the upper filter per the instructions you got, then reboot and see if the setting holds (see if you can see your drive). If it works, then one of the things that you disabled is what's causing the problem.
You can repeat this process on each individual item (one-by-one) to isolate the exact culprit. Once we know that we may be able to offer suggestions on how to repair it (most likely removing the program and installing the latest, Vista compatible version).
Edited by usasma, 02 September 2007 - 06:54 AM.
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